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Stainless Works 1-7/8" primary long-tube headers with 3" collectors and high-flow cats are a direct-fit aftermarket upgrade for 2011–2022 Dodge Durango 5.7L models that rework exhaust flow for less restriction. These headers replace the factory manifolds and route exhaust through larger primaries and collectors. The design targets improved exhaust scavenging and flow; specific power or torque gains are not claimed here beyond the parts’ high-flow configuration.
Stainless Works 11-22 Dodge Durango 5.7L Headers 1-7/8in Primaries 3in Collectors High-Flow Cats
